USAA TAX EXEMPT FUND INC
N-30D, 1999-11-24
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Table of Contents

      USAA Family of Funds                                     1
      Message from the President                               2
      Investment Review:
         USAA California Bond Fund                             4
         USAA California Money Market Fund                    11
         Shareholder Voting Results                           14
      Financial Information:
         Portfolios of Investments:
            Categories and Definitions                        15
            USAA California Bond Fund                         17
            USAA California Money Market Fund                 21
         Notes to Portfolios of Investments                   25
         Statements of Assets and Liabilities                 26
         Statements of Operations                             27
         Statements of Changes in Net Assets                  28
         Notes to Financial Statements                        29






Important Information

Through  our  ongoing  efforts to reduce  expenses  and  respond to  shareholder
requests, your annual and semiannual report mailings are "streamlined." One copy
of each report is sent to each address,  rather than to every registered  owner.
For many  shareholders  and their families,  this eliminates  duplicate  copies,
saving paper and postage costs to the Fund.

If you are the  primary  shareholder  on at least  one  account,  prefer  not to
participate in streamlining, and would like to continue receiving one report per
registered account owner, you may request this in writing to:

    USAA Investment Management Company
    Attn: Report Mail
    9800 Fredericksburg Road
    San Antonio, TX 78284-8916

or phone a Mutual Fund Representative at 1-800-531-8448 during business hours.

This  report is for the  information  of the  shareholders  and  others who have
received a copy of the currently  effective  prospectus  of the USAA  California
Funds,  managed by USAA Investment  Management Company (IMCO). It may be used as
sales literature only when preceded or accompanied by a current prospectus which
gives further details about the Fund.

USAA  with  the  eagle is  registered  in the U.S.  Patent &  Trademark  Office.
(Copyright)1999, USAA. All rights reserved.









USAA Family of Funds Summary

         Fund                                             Minimum
       Type/Name                     Volatility          Investment
       ---------                     ----------          ----------

 CAPITAL APPRECIATION
===============================================================================
 Aggressive Growth                 Very high               $3,000
 Emerging Markets                  Very high               $3,000
 First Start Growth                Moderate to high        $3,000
 Gold                              Very high               $3,000
 Growth                            Moderate to high        $3,000
 Growth & Income                   Moderate                $3,000
 International                     Moderate to high        $3,000
 S&P 500 (Registered Trademark)
  Index                            Moderate                $3,000
 Science & Technology              Very high               $3,000
 Small Cap Stock                   Very high               $3,000
 World Growth                      Moderate to high        $3,000

 ASSET ALLOCATION
===============================================================================
 Balanced Strategy                 Moderate                $3,000
 Cornerstone Strategy              Moderate                $3,000
 Growth and Tax
  Strategy                         Moderate                $3,000
 Growth Strategy                   Moderate to high        $3,000
 Income Strategy                   Low to moderate         $3,000

 INCOME - TAXABLE
===============================================================================
 GNMA                              Low to moderate         $3,000
 High-Yield
  Opportunities                    High                    $3,000
 Income                            Moderate                $3,000
 Income Stock                      Moderate                $3,000
 Intermediate-Term
  Bond                             Low to moderate         $3,000
 Short-Term Bond                   Low                     $3,000

 INCOME - TAX EXEMPT
===============================================================================
 Long-Term                         Moderate                $3,000
 Intermediate-Term                 Low to moderate         $3,000
 Short-Term                        Low                     $3,000
 State Bond Income                 Moderate                $3,000

 MONEY MARKET
===============================================================================
 Money Market                      Very low                $3,000
 Tax Exempt
  Money Market                     Very low                $3,000
 Treasury Money
  Market Trust                     Very low                $3,000
 State Money Market                Very low                $3,000
- -------------------------------------------------------------------------------

Foreign  investing is subject to additional  risks,  which are discussed in  the
funds' prospectuses.

S&P 500 (Registered Trademark) is a trademark of The McGraw-Hill Companies, Inc.
and has been licensed for use. The Product is not sponsored, sold or promoted by
Standard & Poor's,  and Standard & Poor's makes no representation  regarding the
advisability of investing in the Product.

Some income may be subject to state  or  local  taxes or the federal alternative
minimum tax.

An investment  in a money market fund is not insured or  guaranteed  by the FDIC
or any other government agency.  Although the fund  seeks  to preserve the value
of your investment at $1 per share, it is possible to  lose  money  by investing
in the fund.

The Science & Technology Fund may be more volatile than a fund that  diversifies
across many industries.

The  InveStart (Registered Trademark) program is available for investors without
the $3,000  initial  investment  required  to open an IMCO  mutual fund account.
A mutual fund account can be opened with no initial  investment if you elect  to
have  monthly  automatic  investments  of  at  least $50  from  a  bank account.
InveStart is not  available on tax-exempt  funds or the S&P 500 Index Fund.  The
minimum  initial  investment  for IRAs is $250,  except for the  $2,000  minimum
required  for the S&P 500 Index  Fund.  IRAs are not  available  for  tax-exempt
funds.  The Growth and Tax Strategy Fund is not  available as an investment  for
your IRA because the majority of its income is tax exempt.

California,  Florida, New York, Texas, and Virginia funds available to residents
only.

Non-deposit investment products are not insured by the FDIC, are not deposits or
other  obligations  of, or guaranteed by, USAA Federal Savings Bank, are subject
to investment risks, and may lose value.

For more complete  information about the mutual funds managed and distributed by
USAA Investment Management Company, including charges  and  operating  expenses,
please  call  1-800-531-8181  for a prospectus.  Read it  carefully  before  you
invest.









Message from the President


[PHOTOGRAPH OF PRESIDENT AND VICE CHAIRMAN OF THE BOARD: MICHAEL J.C. ROTH, CFA,
 APPEARS HERE]


For as Long as I Have Managed Money
for  customers,  it has been obvious that few things  puzzle or distress them as
much as a falling bond market.  People  generally view bonds as a  risk-lowering
tool.  They add bonds to a portfolio to reduce overall  volatility and to create
an added buffer with the relatively high income. Some people use bond portfolios
as their sole  investment.  Their thinking is that they will live off the income
and not be concerned  about market  values  because they intend to let the bonds
mature. These kinds of strategies were much easier to execute before the days of
fixed-income mutual funds.

Mutual funds did something for bond investors that had never been done before --
show investors  every day what their  portfolio was worth.  In the process,  the
funds  revealed  just  how much  bond  prices  can  move in a day or a week.  No
investor  likes  to see a  portfolio  lose  market  value,  especially  when the
investor  is  thinking  in terms of "low  risk." The latter part of 1998 and the
first three  quarters of 1999 have been a period of  generally  rising  interest
rates,  which has meant falling market  prices.  Let me tell you how we approach
such times.

First, we believe interest-rate  movements are nearly impossible to predict with
both accuracy and consistency.  Second,  we believe that most tax-exempt  income
investors are primarily  interested in a high and stable level of income.  Since
the common way to preserve  market value in a period of rising interest rates is
to switch to money market  investments  at much lower yields,  the importance of
belief one is magnified.  And third, we believe experience going back many years
indicates that the part of a portfolio that is invested in longer maturities may
provide returns that are superior to the money markets.

The chart below shows the one-, five-, and ten-year average annual total returns
for our four national  tax-exempt  funds.  Please bear in mind that there are no
guarantees here -- just as with all mutual funds.



         Average Annual Total Returns as of September 30, 1999
- --------------------------------------------------------------------------------
                                            1 Year       5 Years    10 Years
- --------------------------------------------------------------------------------
USAA Tax Exempt Long-Term Fund               -3.23        6.45        6.93
- --------------------------------------------------------------------------------
USAA Tax Exempt Intermediate-Term Fund       -1.24        6.23        6.88
- --------------------------------------------------------------------------------
USAA Tax Exempt Short-Term Fund               2.06        4.90        5.21
- --------------------------------------------------------------------------------
USAA Tax Exempt Money Market Fund             3.10        3.39        3.67
- --------------------------------------------------------------------------------

Total return equals income plus share price change and assumes  reinvestment  of
all dividends and capital gains distributions.

The performance data quoted represent past performance and are not an indication
of future results.  Investment  return and principal value of an investment will
fluctuate,  and an investor's shares,  when redeemed,  may be worth more or less
than their original cost.

I think the best way to address volatility in bond markets is by allocating some
of your  portfolio  to the  short-term  part of the market.  I believe  that the
pattern of the average  annual total returns shown in the chart above is viable.
So, the  income  part of my  portfolio  is  concentrated  in the USAA Tax Exempt
Long-Term  Fund.  If such a  strategy  leaves you  uncomfortable,  we have other
options.  We'll be  happy  to help you  craft a  portfolio  with  which  you are
comfortable.


Sincerely,



Michael J.C. Roth, CFA
President and
Vice Chairman of the Board


For more complete  information about the mutual funds managed and distributed by
USAA Investment  Management  Company,  including charges and operating expenses,
please call for a prospectus. Read it carefully before investing.

Some income may be subject to state or local  taxes or the  federal  alternative
minimum tax.









Investment Review


USAA CALIFORNIA BOND FUND

OBJECTIVE: High level of current interest income that is exempt from federal and
California state income taxes.

TYPES  OF  INVESTMENTS:   Invests   primarily  in  long-term,   investment-grade
California tax-exempt securities.



- --------------------------------------------------------------------------------
                                                    3/31/99           9/30/99
================================================================================
Net Assets                                       $641.7 Million   $618.9 Million
Net Asset Value Per Share                            $11.29            $10.56
Tax-Exempt Dividends Per Share Last 12 Months         $.588             $.581
Capital Gains Distributions Per Share Last 12 Months    -                  -
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Six-Month Total Return and 30-day SEC Yield* as of 9/30/99
- --------------------------------------------------------------------------------
               3/31/99 to 9/30/99               30-day SEC Yield
                     -3.95%(+)                        4.80%
- --------------------------------------------------------------------------------
  * Calculated as prescribed by the Securities and Exchange Commission.
(+) Total  returns  for periods of less than one year are not  annualized.  This
    six-month return is cumulative.


                     Average Annual Compounded Returns with
         Reinvestment of Dividends - Periods Ending September 30, 1999
- --------------------------------------------------------------------------------
           Total Return     Equals    Dividend Return    Plus    Price Change
- --------------------------------------------------------------------------------
10 Years       7.23%           =           6.10%           +          1.13%
- --------------------------------------------------------------------------------
5 Years        7.18%           =           5.80%           +          1.38%
- --------------------------------------------------------------------------------
1 Year        -3.00%           =           4.93%           +         -7.93%
- --------------------------------------------------------------------------------





              Annual Total Returns and Compounded Dividend Returns
                for the Ten-Year Period Ended September 30, 1999

A chart in the form of a bar graph appears here,  illustrating  the Annual Total
Returns and Compounded Dividend Returns of the USAA California Bond Fund for the
Ten-year period ended September 30, 1999.

Total Return for Years Ended:
- ----------------------------
09/30/90        6.19%
09/30/91       13.17%
09/30/92        9.38%
09/30/93       13.96%
09/30/94       -5.14%
09/30/95       11.24%
09/30/96        8.34%
09/30/97        9.85%
09/30/98       10.15%
09/30/99       -3.00%

**Compounded Dividend Yield for Years Ended:
- -------------------------------------------
09/30/90        6.91%
09/30/91        7.26%
09/30/92        6.54%
09/30/93        6.35%
09/30/94        5.06%
09/30/95        6.47%
09/30/96        6.02%
09/30/97        5.97%
09/30/98        5.69%
09/30/99        4.93%

Change in Share Price:
- ---------------------
09/30/90       -0.72%
09/30/91        5.91%
09/30/92        2.84%
09/30/93        7.61%
09/30/94      -10.20%
09/30/95        4.77%
09/30/96        2.32%
09/30/97        3.88%
09/30/98        4.46%
09/30/99       -7.93%



** Compounded Dividend yield calculation includes only income distributions.


Total  return  equals  dividend  return  plus share  price  change  and  assumes
reinvestment of all dividends and capital gains  distributions.  Dividend return
is the income from dividends  received over the period assuming  reinvestment of
all  dividends.  Share  price  change is the change in net asset  value over the
period adjusted for capital gains distributions. No adjustment has been made for
taxes payable by  shareholders on their  reinvested  dividends and capital gains
distributions.  The performance  data quoted  represent past performance and are
not an indication of future results. Investment return and principal value of an
investment will fluctuate, and an investor's shares, when redeemed, may be worth
more or less than their original cost.




                     12-Month Dividend Yield Comparison

A chart in the form of a bar graph appears here  illustrating  the comparison of
the 12 Month  Dividend  Yield of the USAA  California  Bond Fund to the 12 Month
Dividend  Yield of the  Lipper  California  Municipal  Debt Funds  Average  from
9/30/91 to 9/30/99.

            USAA California Bond            Lipper California Municipal
                 Fund Yield                   Debt Funds Average Yield
            --------------------            ---------------------------
09/30/90           6.82%                              6.79%
09/30/91           6.53%                              6.42%
09/30/92           6.10%                              6.08%
09/30/93           5.41%                              5.36%
09/30/94           5.84%                              5.77%
09/30/95           5.80%                              5.35%
09/30/96           5.71%                              5.10%
09/30/97           5.48%                              4.86%
09/30/98           5.18%                              4.54%
09/30/99           5.50%                                *


The 12-month dividend yield is computed by dividing income dividends paid during
the  previous 12 months by the latest  month-end  net asset value  adjusted  for
capital  gains  distributions.  The graph  represents  data for  periods  ending
9/30/91 to 9/30/99.

* Information from Lipper  Analytical  Service,  Inc. was not available at press
  time.




                    Cumulative Performance Comparison

A chart in the form of a line  graph  appears  here,  comparing  the  cumulative
performance of a $10,000  Investment for the USAA California  Bond Fund,  Lehman
Brothers  Municipal  Bond Index and the Lipper  California  Municipal Debt Funds
Average.  The data is from  9/30/89  through  9/30/99.  The data points from the
graph are as follows:

  USAA California Bond Fund
 Year                  Amount
 ----                  ------
09/30/89              $10,000
03/31/90               10,376
09/30/90               10,619
03/31/91               11,358
09/30/91               12,017
03/31/92               12,439
09/30/92               13,144
03/31/93               14,000
09/30/93               14,979
03/31/94               14,043
09/30/94               14,209
03/31/95               15,010
09/30/95               15,807
03/31/96               16,414
09/30/96               17,125
03/31/97               17,498
09/30/97               18,813
03/31/98               19,656
09/30/98               20,722
03/31/99               20,926
09/30/99               20,099

Lehman Brothers Municipal Bond Index
 Year                  Amount
 ----                  ------
09/30/89              $10,000
03/31/90               10,430
09/30/90               10,680
03/31/91               11,392
09/30/91               12,088
03/31/92               12,531
09/30/92               13,351
03/31/93               14,099
09/30/93               15,053
03/31/94               14,426
09/30/94               14,685
03/31/95               15,498
09/30/95               16,327
03/31/96               16,797
09/30/96               17,313
03/31/97               17,712
09/30/97               18,874
03/31/98               19,610
09/30/98               20,519
03/31/99               20,825
09/30/99               20,376

Lipper California Municipal Debt Funds Average
 Year                  Amount
 ----                  ------
09/30/89              $10,000
03/31/90               10,357
09/30/90               10,525
03/31/91               11,180
09/30/91               11,858
03/31/92               12,235
09/30/92               12,975
03/31/93               13,767
09/30/93               14,742
03/31/94               14,035
09/30/94               14,132
03/31/95               14,858
09/30/95               15,489
03/31/96               15,956
09/30/96               16,513
03/31/97               16,795
09/30/97               17,966
03/31/98               18,632
09/30/98               19,539
03/31/99               19,681
09/30/99               18,970

Data from 9/30/89 through 9/30/99


The broad-based  Lehman Brothers Municipal Bond Index is an unmanaged index that
tracks total return  performance for the long-term, investment-grade, tax-exempt
bond market.  The Lipper California  Municipal Debt Funds Average is the average
performance level of all California  municipal debt funds, as computed by Lipper
Analytical  Services,  Inc.,  an  independent  organization  that  monitors  the
performance of mutual funds. All tax-exempt bond funds will find it difficult to
outperform the Lehman Index since funds have expenses.










Message from the Manager


[PHOTOGRAPH OF PORTFOLIO MANAGER:  ROBERT R. PARISEAU, CFA, APPEARS HERE]


A CHANGE IN SENTIMENT SHAKES THE MARKET
Fixed-income  investors were reminded this year that the financial  markets look
to the  future  -- not the  past or even the  present.  Although  most  economic
statistics released this year suggest that inflation is well under control,  the
fixed-income markets are clearly  anticipating higher rates of inflation.  After
all,  reported  inflation  statistics such as the Consumer Price Index (CPI) are
historical numbers -- even though they may be only a month old. Higher inflation
causes  bond  prices to fall  because  inflation  decreases  the value of future
interest payments.

With a seemingly endless American economic expansion that, at times, seems to be
gaining  strength,  a bear market  psychology has taken hold in the fixed-income
markets.  Economists and investors  wonder just how much longer  economic growth
can continue in the United States without causing higher prices.

After  falling  to levels  not seen in years,  some  inflation  indicators  have
increased slightly in 1999. Will inflation continue to rise or will it stabilize
at  slightly  higher  levels  than in 1998?  This  uncertainty  has  shaken  the
confidence of many fixed-income investors. If inflation has stabilized, then the
rise in interest rates is probably closer to the end than the beginning -- given
current economic conditions.

The yield on the 30-year U.S.  Treasury bond (the long bond) has steadily  risen
from 5.625% to 6.05% from March 31 to September 30, 1999.  The yield on the Bond
Buyer 40-Bond Index (BBI40) faired worse. The municipal  market  under-performed
the Treasury  market as the BBI40 began the period at 5.23%,  or 93% of the long
bond, and ended at 5.89% on September 30, or 97% of the long bond.



                     Municipal and U.S. Treasury Bond Yields

A chart in the form of a line graph appears here  illustrating the yields of the
30-year U.S. Treasury Bond and the Bond Buyer 40-Bond Index (BBI40) from 3/31/99
to 9/30/99.

                30-year           Bond Buyer
                  U.S.              40-Bond
                Treasury          Index (BBI40)
                --------          -------------
03/31/99          5.63%                5.23%
04/15/99          5.53%                5.21%
04/30/99          5.66%                5.28%
05/14/99          5.92%                5.38%
05/31/99          5.83%                5.37%
06/15/99          6.11%                5.53%
06/30/99          5.96%                5.55%
07/15/99          5.92%                5.50%
07/30/99          6.10%                5.59%
08/16/99          6.09%                5.88%
08/31/99          6.06%                5.78%
09/15/99          6.10%                5.86%
09/30/99          6.05%                5.89%


Note: Past performance is no guarantee of future results

The 30-year U.S.  Treasury bond is generally  considered  the benchmark for U.S.
long-term  interest rates.

The  Bond  Buyer  40-Bond  Index  is the  industry  standard  for the  yield  of
long-term, investment-grade municipal bonds.

INCOME STRATEGY
I consistently  follow an income  strategy for this Fund similar to that used by
other USAA tax-exempt funds. I focus primarily on generating  maximum tax-exempt
income with the goal of producing the best after-tax  total return over a three-
to  five-year   investment  horizon.  I  remain  fully  invested  in  long-term,
investment-grade  municipal bonds. My primary  justifications  for this strategy
are simple in concept:

   -   I  believe  that a large  number  of our  investors  own the Fund for the
       tax-free  income and  invest  for the long term -- meaning  three to five
       years or more.

   -   Although past performance is no guarantee of future results, the strategy
       has  worked in  different  kinds of  markets  over the  years.  Long-term
       performance, measured by total return, has been well above the peer-group
       average.

Although the Fund has behaved as expected given the increase in interest  rates,
this  year's  total  return   performance  has  been  very   disappointing   and
frustrating. Why does this income strategy produce such apparently contradictory
results -- weak short-term  total return  performance in 1999 but  above-average
performance for long-term total return? Income performance is well above average
in the short and long term.

Of course, in the short run, price change can overwhelm the income  distribution
to create a negative  total return for a given period.  I believe that an income
strategy works because, over time, the vast majority of your total return from a
fixed-income  security  will be from the income.  Price changes tend to even out
over longer investment horizons. Please refer to the table and chart on page 4.


YOUR INVESTMENT HORIZON IS IMPORTANT!
I  consistently  invest  the  Fund in  long-term,  investment-grade,  tax-exempt
municipal securities. Why long-term bonds? Because bonds maturing in 20 years or
longer almost  always yield more than shorter bonds of the same credit  quality.
However,  longer-maturity bonds are more volatile in price than shorter-maturity
bonds. In regard to credit risk, I believe  investment-grade bonds (rated BBB or
higher)  offer the best  risk/reward  compared  to either  junk bonds or insured
bonds.  That's why we encourage only those  investors with a three- to five-year
investment horizon to buy our tax-exempt bond funds.  These long-term  investors
seeking high current income must be willing to assume  moderate  credit risk and
price volatility in return.

A TIME TO REFLECT
Because  interest  rates have risen in 1999,  investors have suffered for owning
any kind of long-maturity bond -- municipals, corporates, or governments. That's
the mathematics of bond investing.  An investor can mitigate, but not eliminate,
the  volatility  risk by investing for the long term.  Although our strategy has
produced  good  results  for  our  investors  in  the  past,  to  guard  against
complacency,   we  are   constantly   examining  and  analyzing  our  investment
strategies.

Is there a better way to invest a tax-exempt  bond fund?  An  alternative  to an
income strategy is to focus on total return.  However,  a total-return  strategy
requires  the  manager  to  successfully  time the  market  cycles by  correctly
forecasting  interest  rates again and again over  extended  periods of time. No
person, to my knowledge, has ever done that.

Enduring a bear  market  like 1999 can be very  unsettling.  It's a good time to
review why you purchased the Fund in the first place:

   - Are you most  interested  in receiving a high level of interest  income
     that is free of federal and state  taxes?

   - Is your  investment  horizon long enough to cope with the ups and downs
     of the market?

   - Do you need to raise cash? Do you maintain a sufficient cash reserve?

   - Are you comfortable with the moderate credit risk of investment-grade
     municipal  bonds?  (Please  review the Portfolio  Ratings Mix chart on
     page 10.)

I view  the  current  environment  as an  opportunity  to  increase  the  Fund's
distribution  yield by buying bonds that offer very  attractive  yields at value
prices.

YOUR FUND'S PERFORMANCE  * * * *
I'm pleased to say that your Fund  received an Overall Star Rating of four stars
in the municipal bond fund category from Morningstar  Rating(Trademark)  for the
period ended  September  30,  1999.  Your Fund's net asset value (NAV) per share
decreased by $0.73, or -6.47%, since March 31, 1999.

While past performance is no guarantee of future results,  the Fund's annualized
dividend  distribution  yield for the past six months was 5.46%.  At press time,
Lipper yield data was not available  for the same time period.  The Fund's total
return was -3.95% compared to Lipper's California Municipal Debt Fund Average of
- -3.73% for the 100 funds in the category.

Past  performance  is no guarantee of future  results.  Morningstar  proprietary
ratings reflect historical  risk-adjusted  performance as of September 30, 1999.
The  ratings  are  subject  to  change  every  month.  Morningstar  ratings  are
calculated from the Fund's three-, five-, and ten-year average annual returns in
excess of 90-day  Treasury bill returns with  appropriate  fee adjustments and a
risk factor that reflects fund performance below 90-day T-bill returns.  Overall
rating is a weighted average of a fund's three-, five-, and ten-year ratings, as
applicable.  The USAA California Bond Fund received five,  five, and three stars
for the three-,  five-, and ten-year periods,  respectively.  The top 10% of the
funds in a broad asset class  receive  five stars,  the next 22.5%  receive four
stars,  and the next 35% receive  three  stars.  The Fund was rated among 1,611,
1,241, and 375 funds in the municipal bond fund category for the three-,  five-,
and ten-year periods, respectively.

Dividend yield is computed by dividing income dividends paid during the previous
six months by the latest  month-end  net asset value  adjusted for capital gains
distributions and annualizing the result.

Refer to the bottom of page 5 for the Lipper Average definition.

Total  return   equals  income  return  plus  share  price  change  and  assumes
reinvestment of all dividends and capital gains distributions.

THE STATE OF CALIFORNIA
California's economy continues to exceed expectations.  The unemployment rate, a
key  economic  indicator,  improved  from 5.9% in August  1998 to 5.1% in August
1999.  Because  personal income growth has been notably strong,  personal income
tax collections increased 9.2% over fiscal 1997-98 levels. The income tax, which
comprises  approximately  one-half of general fund revenues, was a key factor in
achieving a general fund balance of $2.4 billion as of June 30, 1999.

The  increase of  California's  general  fund has  improved  the state's  fiscal
health.  Such technical  measures as  "borrowable  resources"  between  accounts
within the general fund has  increased  from $6.9 billion June 30, 1998, to $8.7
billion June 30, 1999 -- the highest level seen in many years.  The general fund
also borrowed less money,  with debt falling from $1.7 billion in fiscal 1998-99
to $1.0 billion in fiscal 1999-2000. The credit rating agencies take great stock
in such indicators of financial flexibility and liquidity.

The state's  debt  position is  moderate.  Currently,  debt  service  represents
approximately  4.2% of general  fund  revenues.  Credit  ratings on the  state's
general obligation debt are Aa3 by Moody's Investors Service, AA- by Fitch IBCA,
and AA- from Standard and Poor's -- which was upgraded from A+ in August.

I discuss these general economic issues because,  although they may not directly
relate to each of your Fund's holdings,  they do indicate the general  financial
and economic  environment of the state.  We will closely  monitor those specific
credit issues, ballot initiatives,  and litigation that could potentially impact
the value of your holdings.









TAXABLE EQUIVALENT YIELDS
The  table  below  compares  the yield of the USAA  California  Bond Fund with a
taxable equivalent investment.

To match the USAA California Bond Fund's closing 30-day SEC yield of 4.80% and:
- --------------------------------------------------------------------------------
 Assuming a California state tax rate of:  4.00%  8.00%   9.30%   9.30%   9.30%
  and a marginal federal tax rate of:       15%    28%     31%     36%    39.6%
- --------------------------------------------------------------------------------
 A fully taxable investment must pay:      6.14%  7.25%   7.67%   8.27%   8.76%
- --------------------------------------------------------------------------------
This table is based on a hypothetical  investment  calculated  for  illustrative
purposes only. It is not an indication of performance for any of the USAA family
of funds.


                             Portfolio Ratings Mix
                               September 30, 1999

A pie chart is shown here  depicting the Portfolio  Ratings Mix  as of September
30, 1999 of the USAA California Bond Fund to be:

AAA - 40.6%; AA - 20.9%; A - 25.6%; Cash Equivalents - 2.4%; and BBB - 10.5%.


The four  highest  long-term  credit  ratings,  in  descending  order of  credit
quality,  are AAA,  AA, A, and BBB.  This chart  reflects  the higher  rating of
either Moody's Investors Service, Standard & Poor's Rating Group, or Fitch IBCA.
Unrated  securities  that have been  determined by USAA IMCO to be of equivalent
investment  quality  to  categories  AAA and BBB  account  for  2.5%  and  0.4%,
respectively,  of the Fund's investments,  and are included in their appropriate
category above.







Note:  Some  income  may be subject to federal, state,  or local taxes,  or  the
federal alternative minimum tax.

See page 17 for a complete listing of the Portfolio of Investments.










Investment Review


USAA CALIFORNIA MONEY MARKET FUND

OBJECTIVE: High level of current interest income that is exempt from federal and
California state income taxes and a further objective of preserving  capital and
maintaining liquidity.

TYPES OF INVESTMENTS:  Invests primarily in high-quality,  California tax-exempt
securities  with  maturities  of 397 days or  less.  The Fund  will  maintain  a
dollar-weighted  average portfolio maturity of 90 days or less and will endeavor
to maintain a constant net asset value per share of $1.00.*

*An  investment  in a money market fund is not insured or guaranteed by the FDIC
or any government agency.  Although the Fund seeks to preserve the value of your
investment at $1.00 per share,  it is possible to lose money by investing in the
Fund.


- --------------------------------------------------------------------------------
                                                  3/31/99          9/30/99
- --------------------------------------------------------------------------------
  Net Assets                                   $439.2 Million   $401.3 Million
  Net Asset Value Per Share                         $1.00            $1.00
- --------------------------------------------------------------------------------
Average Annual Total Returns and 7-Day Yield as of 9/30/99
- --------------------------------------------------------------------------------
         3/31/99                             Since Inception      7-Day
       to 9/30/99     1 Year     5 Years        on 8/1/89         Yield
         1.40%(+)      2.79%      3.26%           3.50%           3.22%
- --------------------------------------------------------------------------------

(+) Total returns  for  periods  of less than one year are not  annualized. This
    six-month return is cumulative.

Total return equals income return and assumes  reinvestment of all dividends and
any capital gains  distributions.  No adjustment has been made for taxes payable
by shareholders on their reinvested  dividends and capital gains  distributions.
Past  performance  is  no  guarantee  of  future  results.  Yields  and  returns
fluctuate.  The 7-day yield quotation more closely  reflects current earnings of
the Fund than the total return quotation.




                            7-Day Yield Comparison

A chart in the form of a line graph appears here  illustrating the comparison of
the 7-day Yield of the USAA  California  Money Market Fund and the IBC Financial
Data, Inc. State Specific SB (Stock Broker) and GP (General Purpose) (Tax-Free):
California Money Funds.

                      USAA California
                      Money Market Fund                IBC Financial Data, Inc.
                      -----------------                ------------------------
03/29/99                     2.65%                              2.31%
04/26/99                     3.01%                              2.67%
05/31/99                     2.88%                              2.55%
06/28/99                     3.09%                              2.80%
07/26/99                     2.60%                              2.28%
08/30/99                     2.76%                              2.44%
09/27/99                     3.12%                              2.75%

Data represent the last Monday of each month.
Ending date 9/27/99

The graph tracks the Fund's 7-day yield against IBC Financial  Data,  Inc. State
Specific SB (Stock Broker) & GP (General Purpose)  (Tax-Free):  California Money
Funds, an average of money market fund yields.









Message from the Manager


[PHOTOGRAPH OF PORTFOLIO MANAGER:  REGINA G. SHAFER, CFA, APPEARS HERE]


THE MARKET

Since our last  shareholder  report,  the  national  economy  has  continued  to
strengthen.  Consumer  confidence  has been very high due, in part, to continued
strong employment. In August, national unemployment reached the lowest levels of
the decade -- 4.2%.  This strong economy has caused the Federal Reserve Board to
take  action  in order to keep  inflation  in check.  The  Federal  Open  Market
Committee  has raised the federal  funds rate (the  interest  rate banks  charge
other  banks)  twice since March -- an increase of 0.25% in both June and August
- -- to bring the  federal  funds  rate to 5.25%.  During  this time  period,  the
30-year  Treasury  rate  ranged  from 5.4% in April to 6.3% in August.  One-year
municipal note yields have also inched up over the last six months. According to
the Bond Buyer  One-Year  Note Index,  municipal  notes have risen from a low of
3.05% in April to a high of 3.73% as of September.  California  note levels have
been lower than the national note averages due to a different  supply and demand
environment.

STRATEGY

Instead of trying to determine where interest rates will be in the near term, we
continue  to  focus  on  finding   relative  value.  Our  credit  research  team
contributes to this effort by assessing the  creditworthiness of each issue that
the Fund  purchases.  The Fund's average  maturity of 53 days on September 30 is
notably longer than the 32 days average  maturity just six months ago. There are
two primary reasons for the longer maturity. First, there were attractive levels
on many California notes, the majority of which were issued in June. Second, the
Fund has been  defensively  postured for the interest rate drops that occur with
the shorter-term variable-rate notes each year beginning in July.

This year, the California short-term variable-rate notes actually remained lower
for a longer period due to the high demand for such tax-exempt securities.  This
allowed the  defensive  posturing to pay off in the form of better  performance.
This  higher-than-normal  demand  has been a  result  of the  strong  California
economy. There have been fewer short-term notes issued by counties,  cities, and
schools -- lower supply, and greater wealth in California looking for tax-exempt
income -- higher demand.  This combination of lower supply and higher demand has
kept the yield on California short-term paper low.

PERFORMANCE

For the 12 months ending  September 30, 1999, the USAA  California  Money Market
Fund ranked 3 out of 48 California money market funds according to IBC Financial
Data, Inc., with a return of 2.79%. The average return for the category over the
same period was 2.46%. Please keep in mind that past performance is no guarantee
of future results.


The Bond  Buyer  One-Year  Note Index is  representative  of yields on ten large
one-year tax-exempt notes.

Variable-rate  demand notes represent  borrowings that are payable on demand and
that bear interest  reflective of a money market rate.

IBC  Financial  Data,  Inc.  provides  independent  analysis  of  trends  in the
financial services and investing  industries,  with particular  concentration on
money market funds.


CALIFORNIA

California continues to benefit from a very strong, robust economy. Unemployment
levels of 5.1% in August were the lowest for the state since 1990.  Furthermore,
state  unemployment  levels are just 0.9% above the national level, the smallest
difference in over a decade.  Employment has reached record levels, with over 14
million jobs for the first time ever. Single-family home sales are also reaching
new heights.

Not  surprisingly,  California's  financial  position  has  benefited  from  its
economic  expansion.  The state is  believed  to have ended the 1999 fiscal year
with a $2.4 billion  reserve.  This was about $1.3 billion better than the state
had projected earlier when there were concerns about the effect of the Asian flu
on the  California  economy.  The  1999-2000  budget  reflects an 8% increase in
revenues and  expenditures.  Major budget features include increased funding for
education,  health/human  services,  and  infrastructure,  as well  as  one-time
expenditures to local governments.

In August,  Standard and Poor's  increased  the bond rating on the state general
obligation  debt to AA- from A+,  reflecting the state's  economic  strength and
solid financial  performance.  Moody's Investors Service and Fitch IBCA rate the
state Aa3 and AA-, respectively.



                   Cumulative Performance of $10,000

A chart in the form of a line graph  appears here  illustrating  the  cumulative
performance of a $10,000  investment of the USAA  California  Money Market Fund.
The data is from  9/30/89  to  9/30/99.  The data  points  from the graph are as
follows:

USAA California Money Market Fund
 Year                  Amount
 ----                  ------
09/30/89              $10,000
03/31/90               10,279
09/30/90               10,561
03/31/91               10,838
09/30/91               11,072
03/31/92               11,275
09/30/92               11,437
03/31/93               11,575
09/30/93               11,708
03/31/94               11,831
09/30/94               11,979
03/31/95               12,180
09/30/95               12,402
03/31/96               12,616
09/30/96               12,820
03/31/97               13,023
09/30/97               13,244
03/31/98               13,459
09/30/98               13,679
03/31/99               13,866
09/30/99               14,061

Data from 9/30/89 through 9/30/99

Past  performance  is no  guarantee  of  future  results,  and the value of your
investment  will vary  according to the Fund's  performance.  Some income may be
subject to federal, state, or local taxes, or to the federal alternative minimum
tax.  For the 7-day yield  information,  please  refer to the Fund's  Investment
Review page.

See page 21 for a complete listing of the Portfolio of Investments.









Shareholder Voting Results


On October 15, 1999, a special meeting of  shareholders  was held to vote on the
following  proposals.  All  proposals  were  approved by the  shareholders.  All
shareholders  of  record on  August  19,  1999,  were  entitled  to vote on each
proposal.  The number of votes  shown  below are shown for the  entire  USAA Tax
Exempt Fund, Inc. (the Company) for proposals 1 and 2.

1 Proposal to elect a Board of Directors as follows:

     DIRECTORS                    VOTES FOR             VOTES WITHHELD
     Robert G. Davis             1,653,325,550            19,504,676
     Michael J.C. Roth           1,653,325,550            19,504,676
     David G. Peebles            1,653,325,550            19,504,676
     Robert L. Mason             1,653,325,550            19,504,676
     Michael F. Reimherr         1,653,325,550            19,504,676
     Richard A. Zucker           1,653,325,550            19,504,676
     Barbara B. Dreeben          1,653,325,550            19,504,676

John W. Saunders,  Jr. and Howard L. Freeman,  Jr. did not stand for re-election
to the Board. Their term of office will terminate on December 31, 1999.

2 Proposal to ratify or reject the  selection  by the Board of Directors of KPMG
LLP as auditors for the Company for the fiscal year ending March 31, 2000.

                            NUMBER OF SHARES VOTING
- --------------------------------------------------------------------------------
            FOR                     AGAINST                  ABSTAIN

       1,631,286,201               19,197,037               22,346,988









CATEGORIES & DEFINITIONS
PORTFOLIOS OF INVESTMENTS

September 30, 1999
(Unaudited)


Fixed-Rate  Instruments  - consist of municipal  bonds,  notes,  and  commercial
paper. The interest rate is constant to maturity.  Prior to maturity, the market
price of a fixed-rate  instrument  generally varies inversely to the movement of
interest rates.

Put Bonds - provide the right to sell the bond at face value at specific  tender
dates prior to final maturity.  The put feature shortens the effective  maturity
of the security.

Variable-Rate  Demand Notes (VRDN) - provide the right,  on any business day, to
sell the  security  at face  value on  either  that  day or in seven  days.  The
interest rate is generally  adjusted at a stipulated  daily,  weekly, or monthly
interval to a rate that  reflects  current  market  conditions.  In money market
funds, the effective maturity of these instruments is deemed to be less than 397
days in accordance with regulatory  requirements.  In bond funds,  the effective
maturity is the next put date.

Credit  Enhancements  - add  the  financial  strength  of  the  provider  of the
enhancement to support the issuer's ability to repay the principal when due. The
enhancement may be provided by either a high-quality bank,  insurance company or
other corporation, or a collateral trust.

The USAA  California  Money  Market  Fund's  investments  consist of  securities
meeting  the  requirements  to  qualify  as  "eligible   securities"  under  the
Securities and Exchange Commission (SEC) rules applicable to money market funds.
With respect to quality,  "eligible  securities" generally consist of securities
rated in one of the two highest categories for short-term securities, or, if not
rated, of comparable quality, at the time of purchase. The Manager also attempts
to  minimize  credit  risk in the USAA  California  Money  Market  Fund  through
rigorous internal credit research.

(ETM)  Escrowed to final maturity.
(PRE)  Prerefunded to a date prior to maturity.
(LOC)  Enhanced  by a bank letter of credit.
(NBGA) Enhanced by a non-bank guarantee agreement.
(INS)  Scheduled principal and interest payments are insured by:
       (1) MBIA, Inc.
       (2) AMBAC Financial Group, Inc.
       (3) Financial Guaranty Insurance Co.
       (4) Financial Security Assurance Holdings Ltd.
       (5) College Construction Loan Insurance Association.
       (6) ACA Financial Guaranty Corp.



PORTFOLIO ABBREVIATIONS AND DESCRIPTIONS
CAB     Capital Appreciation Bond          MFH    Multi-Family Housing
COP     Certificate of Participation       PCRB   Pollution Control Revenue Bond
CP      Commercial Paper                   RB     Revenue Bond
GO      General Obligation                 TRAN   Tax Revenue Anticipation Note
IDA     Industrial Development
         Authority/Agency








<TABLE>

USAA CALIFORNIA BOND FUND
PORTFOLIO OF INVESTMENTS
(IN THOUSANDS)

September 30, 1999
(Unaudited)


<CAPTION>

 Principal                                                Coupon      Final       Market
  Amount                  Security                         Rate      Maturity      Value
- -----------------------------------------------------------------------------------------
  <C>       <S>                                           <C>      <C>           <C>
                         FIXED-RATE INSTRUMENTS (97.9%)
            California (94.5%)
            Alameda Corridor Transportation Auth. CAB,
  $12,625    Series 1999A (INS)(1),(a)                    5.40%    10/01/2030    $  2,053
   15,500    Series 1999A (INS)(1),(a)                    5.40     10/01/2031       2,370
   33,380    Series 1999A (INS)(1),(a)                    5.41     10/01/2032       4,807
   16,600    Series 1999A (INS)(1),(a)                    5.65     10/01/2033       2,251
    3,000   Alameda Housing Auth. MFH RB,
             Series 1998A                                 5.35      2/20/2031       2,769
    7,500   Antelope Valley Healthcare District RB,
             Series 1997B (INS)(4)                        5.20      1/01/2027       6,899
    2,000   Association of Bay Area Governments
             Finance Auth. COP, Series 1998 (NBGA)        5.13      5/15/2023       1,803
            Burbank Unified School District GO,
    4,025    Series 1998B (INS)(3),(a)                    5.30      8/01/2022       1,068
    3,130    Series 1998B (INS)(3),(a)                    5.30      8/01/2023         782
   30,000   Central Valley Finance Auth. RB,
             Series 1993 (PRE)                            6.20      7/01/2020      32,569
            Commerce Community Development
             Commission Tax Allocation Bonds,
    3,740    Series 1997A, Project #1 (INS)(1),(a)        5.50      8/01/2022         993
    3,740    Series 1997A, Project #1 (INS)(1),(a)        5.50      8/01/2023         934
    2,650   Contra Costa Water District RB,
             Series 1994G (INS)(1)                        5.50     10/01/2019       2,611
    5,400   Department of Water Resources RB,
             Series L                                     5.75     12/01/2019       5,429
    5,000   Desert Hospital District COP (PRE)            6.39      7/28/2020       5,349
            Educational Facilities Auth. RB,
    9,500    Series 1991 (PRE)                            7.15      5/01/2021      10,159
    1,775    Series 1992 (PRE)                            6.88      9/01/2022       1,945
    8,990    Series 1992 (PRE)                            6.50     10/01/2022       9,774
    5,000    Series 1992 (Pomona College)                 6.00      2/15/2017       5,177
    9,000    Series 1994 (National University) (INS)(5)   6.20      5/01/2021       9,346
    8,015    Series 1995 (Redland University)             6.00     10/01/2025       8,079
    8,050    Series 1995A (California Education Pool)     5.60     12/01/2020       7,859
            Fallbrook Union High School District GO,
    3,000    Series 1998 (INS)(3),(a)                     5.40      9/01/2018       1,022
    3,360    Series 1998 (INS)(3),(a)                     5.40      9/01/2019       1,070
            Fontana Unified School District GO
             Convertible Zero Coupon,
    2,500    Series 1990D (INS)(3),(a)                    5.80      5/01/2017       2,409
    2,000    Series 1990D (INS)(3),(a)                    5.85      5/01/2022       1,901
    8,270   Foothill/Eastern Transportation
             Corridor Agency RB, Series 1995A             5.00      1/01/2035       7,025
    2,270   Fresno COP, Series 1991                       8.50      5/01/2016       2,352
            Health Facilities Financing Auth. RB,
    8,000    Series 1990 (PRE)                            7.50     10/01/2010       8,462
    6,500    Series 1990A (NBGA)                          7.70      9/01/2010       6,834
   35,000    Series 1990A (PRE)(d)                        6.50     12/01/2020      36,814
   11,500    Series 1991 (PRE)                            6.75      6/01/2021      12,233
    3,175    Series 1992A (INS)(1)                        6.38     10/01/2022       3,361
    3,500    Series 1993C (Kaiser)                        5.60      5/01/2033       3,291
    2,000    Series 1994 (NBGA)                           6.50      9/01/2014       2,117
    5,000    Series 1994A (Scripps Research Institute)    6.63      7/01/2018       5,286
    1,000    Series 1997A (NBGA)                          5.50      1/01/2019         951
    2,320    Series 1998A (NBGA)                          5.25      5/01/2021       2,123
    3,325    Series 1998A (NBGA)                          5.30     11/01/2028       3,038
    4,000    Series 1998A (Catholic Healthcare West)      5.00      7/01/2028       3,232
    5,000    Series 1998B (Kaiser)                        5.00     10/01/2020       4,437
    4,180   Hollister Joint Powers Financing Auth. RB     5.90     12/01/2023       4,135
            Housing Finance Agency Home Mortgage RB,
   10,310    Series 1991F (d)                             6.85      8/01/2017      10,716
    5,990    Series 1994A                                 6.55      8/01/2026       6,209
    3,000   Housing Finance Agency MFH RB,
             Series 1996A (INS)(2)                        6.05      8/01/2027       3,070
    1,500   Housing Finance Agency RB, Series 1997D       5.85      8/01/2017       1,517
    5,455   Imperial Beach MFH RB, Series 1995A           6.45      9/01/2025       5,734
            Infrastructure and Economic
             Development RB,
    2,500    Series 1999 (INS)(6)                         5.70     12/01/2019       2,424
      500    Series 1999 (INS)(6)                         5.75     12/01/2024         490
    7,000    Series 1999 (INS)(6)                         5.80     12/01/2029       6,877
            Metropolitan Water District RB,
    5,000    Series 1992                                  5.50      7/01/2019       4,955
   21,750    Series 1998A                                 4.75      7/01/2022      18,920
    3,000   Mojave Water Agency Improvement
             District GO, Series 1992 (PRE)               6.60      9/01/2022       3,267
    4,855   Murrieta Valley Unified School District GO,
             Series 1998A (INS)(3),(a)                    5.28      9/01/2018       1,653
            New Haven Unified School District GO,
   14,725    Series 1996B (INS)(3),(a)                    5.52      8/01/2022       3,864
   10,975    Series 1997A (INS)(4),(a)                    6.10      8/01/2021       3,067
   10,330   Pleasanton Joint Powers Financing Auth. RB,
             Series 1993A                                 6.15      9/02/2012      10,694
   13,400   Riverside County Public Financing Auth.
             Tax Allocation RB, Series 1997A              5.63     10/01/2033      12,703
    6,500   Sacramento Cogeneration Auth. RB,
             Series 1995 (PRE)                            6.50      7/01/2021       7,275
            Sacramento Power Auth. RB,
    3,700    Series 1995 (Cogeneration Project)           5.88      7/01/2015       3,696
    6,000    Series 1995 (Cogeneration Project)           6.00      7/01/2022       5,995
    7,040   San Diego MFH RB, Series 1995A                6.45      5/01/2025       7,365
            San Diego Unified School District CAB,
    6,940    Series 1999A (INS)(3),(a)                    5.54      7/01/2020       2,091
   15,160    Series 1999A (INS)(3),(a)                    5.55      7/01/2021       4,293
    8,440    Series 1999A (INS)(3),(a)                    5.56      7/01/2022       2,250
   18,000   San Francisco Bay Area RB, Series 1999(c)     5.50      7/01/2029      17,473
            San Joaquin Hills Transportation
             Corridor Agency RB,
   13,500    Series 1993 (PRE)                            6.75      1/01/2032      14,830
   10,035    Series 1993                                  5.00      1/01/2033       8,602
   97,650    Series 1997A (INS)(1),(a)                    5.67      1/15/2032      14,588
   11,320   San Mateo Sewer RB,
             Series 1992 (PRE)(INS)(2)                    6.30      8/01/2017      12,217
   12,455   Southern California Public Power Auth. RB,
             Series 1989 (LOC)                            6.00      7/01/2018      12,484
            State GO,
   13,050    Series 1998                                  5.00     10/01/2023      11,761
   22,100    Series 1998                                  5.00     10/01/2027      19,708
   10,000    Series 1999                                  5.50      9/01/2024       9,729
            Statewide Communities Development
             Auth. COP,
   13,500    Huntington Memorial Hospital (INS)(5)        5.80      7/01/2026      13,471
    5,420    Lutheran Homes (NBGA)                        5.75     11/15/2021       5,486
    4,000    San Gabriel Valley (NBGA)                    5.50      9/01/2014       4,264
    1,055    The Arc of San Diego (NBGA)                  5.63      5/01/2021       1,023
            Suisun City Public Financing Auth. RB,
   17,855    Series 1998A (a)                             5.37     10/01/2028       3,026
   20,080    Series 1998A (a)                             5.37     10/01/2033       2,497
            Univ. of California RB,
   12,000    Series 1991A (PRE)(d)                        6.88      9/01/2016      13,159
    4,000    Series 1996 (INS)2                           5.75      7/01/2024       4,007
   18,000   Vallejo Sanitation and Flood Control COP,
             Series 1993 (INS)3                           5.00      7/01/2019      16,606
            Washington Township Health Care
             District RB,
    7,085    Series 1999                                  5.13      7/01/2023       6,300
    3,005    Series 1999                                  5.25      7/01/2029       2,677
            Washington Township Hospital RB,
   11,000    Series 1993                                  5.50      7/01/2018      10,415
    7,845    Series 1993                                  5.25      7/01/2023       7,118
            Watsonville Hospital RB,
    5,000    Series 1995A (PRE)(NBGA)                     6.35      7/01/2024       5,567
    1,515    Series 1996A (ETM)(NBGA)                     6.20      7/01/2012       1,645

            Puerto Rico (3.4%)
            Electric Power Auth. RB,
   10,000    Series 1995 X (PRE)                          6.13      7/01/2021      11,037
   10,500    Series 1995Z                                 5.25      7/01/2021       9,772
- -----------------------------------------------------------------------------------------
            Total fixed-rate instruments (cost: $597,606)                         605,706
- -----------------------------------------------------------------------------------------

                         VARIABLE-RATE DEMAND NOTE (2.4%)
            California
   14,810   State Financing Auth. PCRB,
             Series 1996C (LOC) (cost: $14,810)           3.70     11/01/2026      14,810
- -----------------------------------------------------------------------------------------
            Total investments (cost: $612,416)                                   $620,516
=========================================================================================
</TABLE>



                       PORTFOLIO SUMMARY BY CONCENTRATION
                       ----------------------------------
            Escrowed Bonds                                      30.1%
            Hospitals                                           12.8
            General Obligations                                 10.8
            Water/Sewer Utilities - Municipal                    8.5
            Electric/Gas Utilities - Municipal                   5.2
            Real Estate Tax/Free                                 5.0
            Education                                            4.9
            Toll Roads                                           4.9
            Multi-Family Housing                                 3.0
            Single-Family Housing                                3.0
            Sales Tax                                            2.8
            Electric Utilities                                   2.4
            Airport/Port                                         1.8
            Nursing/Continuing Care Centers                      1.7
            Community Service                                    1.6
            Health Care - Miscellaneous                          1.4
            Buildings                                             .4
                                                               -----
            Total                                              100.3%
                                                               =====








<TABLE>

USAA CALIFORNIA MONEY MARKET FUND
PORTFOLIO OF INVESTMENTS
(IN THOUSANDS)

September 30, 1999
(Unaudited)

<CAPTION>


  Principal                                                  Coupon      Final
   Amount                Security                             Rate     Maturity      Value
- -------------------------------------------------------------------------------------------
   <C>      <S>                                               <C>      <C>         <C>
                       VARIABLE-RATE DEMAND NOTES (68.7%)
            California (67.0%)
   $9,000   Alameda County IDA RB, Series 1994                3.90%    6/01/2004   $  9,000
    8,700   Contra Costa County MFH RB,
             Series 1990A (LOC)                               3.75     8/01/2007      8,700
    8,500   Corona MFH RB, Series 1985B (NBGA)(b)             3.50     2/01/2005      8,500
            Fremont COP,
    6,275    Series 1990 (LOC)                                3.50     7/01/2015      6,275
    4,400    Series 1991 (LOC)                                3.50     8/01/2022      4,400
    2,000   Hacienda Puente Unified School District
             COP (LOC)                                        3.65    10/01/2009      2,000
    2,015   Hesperia Public Financing Auth. Lease RB,
             Series 1998B (LOC)                               3.65     6/01/2022      2,015
    4,800   Huntington Beach MFH RB,
             Series 1985A (LOC)                               4.00     2/01/2010      4,800
    8,850   Irvine Assessment District No. 89-10
             Improvement Bonds (LOC)                          3.50     9/02/2015      8,850
   23,184   Irvine Assessment District No. 97-17
             Improvement Bonds (LOC)                          3.50     9/02/2023     23,184
    2,400   Irvine IDA RB, Series 1985 (LOC)                  4.45    11/01/2005      2,400
    4,100   Irvine Ranch Water District
             Consolidated Bonds, Series 1995 (LOC)            3.50     1/01/2021      4,100
    2,700   Irvine Ranch Water District
             Consolidated Bonds, Series 1985 (LOC)            3.50    10/01/2010      2,700
    9,400   Irvine Ranch Water District COP,
             Series 1986 (LOC)                                3.50     8/01/2016      9,400
    9,000   Lancaster MFH RB, Series 1984A (NBGA)(b)          3.70    11/01/2004      9,000
    1,395   Lemoore COP, Series 1995 (LOC)                    3.70    11/01/2020      1,395
    6,800   Loma Linda Water RB, Series 1995 (LOC)            3.65     6/01/2025      6,800
   14,000   Los Angeles Community Redevelopment
             Agency COP, Series 1994 (LOC)                    3.65    12/01/2014     14,000
    5,000   Los Angeles Unified School District COP,
             Series 1997A (LOC)                               3.20    12/01/2017      5,000
    4,200   Monrovia Redevelopment Agency COP,
             Series 1984 (NBGA)                               3.25    12/01/2014      4,200
    9,750   Monterey County Financing Auth. RB,
             Series 1995A (LOC)                               3.45     9/01/2036      9,750
    8,410   Moreno Valley COP, Series 1997 (LOC)              3.80     6/01/2027      8,410
    3,200   Ontario Industrial Development Auth. RB,
             Series 1985 (LOC)                                3.90     4/01/2015      3,200
            Orange County Apartment Development RB,
    8,100    Series 1984D (LOC)                               3.87     8/01/2019      8,100
    7,000    Series 1985D (LOC)                               5.30     4/01/2006      7,000
    9,300   Rialto Public Financing Auth. Tax
             Allocation RB, Series 1998A (LOC)                4.15     9/01/2027      9,300
    3,500   Sacramento County Multifamily Housing RB,
             Series C (NBGA)                                  3.40     4/15/2007      3,500
    8,200   San Bernardino County COP,
             Series 1996 (LOC)                                3.80    11/01/2025      8,200
    4,850   San Bernardino IDA RB, Series 1992 (LOC)          3.85     2/01/2012      4,850
    8,800   San Diego MFH RB, Series 1993A (NBGA)             3.90    12/01/2015      8,800
    3,100   San Dimas Redevelopment Agency IDA RB,
             Series 1985 (LOC)                                4.05    11/01/2015      3,100
    3,600   San Francisco City and County MFH RB,
             Series 1985A (LOC)                               3.35    12/01/2005      3,600
   10,020   State Financing Auth. PCRB,
             Series 1996C (LOC)                               3.70    11/01/2026     10,020
            Statewide Communities Development
             Auth. COP,
    3,625    Series 1992 (LOC)                                3.80    11/01/2022      3,625
    2,200    Series 1992 (LOC)                                3.55    12/01/2022      2,200
    4,300    Series 1996 (LOC)                                3.80     6/01/2026      4,300
    3,200    Series 1998 (LOC)                                3.90     6/01/2013      3,200
   10,000    Series 1998 (LOC)                                3.70    11/15/2028     10,000
   21,000   Torrance Hospital RB, Series 1992 (LOC)           3.45     2/01/2022     21,000
            Puerto Rico (1.7%)
    6,900   Industrial Medical and Environmental
             Pollution Control Facilities Financing
             Auth. RB, Series 1985 (LOC)                      3.80    12/01/2015      6,900
- -------------------------------------------------------------------------------------------
            Total variable-rate demand notes (cost: $275,774)                       275,774
- -------------------------------------------------------------------------------------------

                                PUT BONDS (3.8%)
            California
    2,660   Pollution Control Financing Auth. PCRB,
             Series 1984                                      3.10     5/15/2002      2,660
   12,700   Public Capital Improvement Finance
             Auth. RB, Series 1988C (LOC)                     3.35     6/01/2028     12,700
- -------------------------------------------------------------------------------------------
            Total put bonds (cost: $15,360)                                          15,360
- -------------------------------------------------------------------------------------------

                         FIXED-RATE INSTRUMENTS (26.8%)
            California (25.5%)
    6,300   Alameda Unified School District GO TRAN,
             Series 1999                                      3.38     6/30/2000      6,310
    2,150   Auburn Unified School District GO TRAN,
             Series 1999                                      4.13    10/01/2000      2,158
    2,000   Health Facilities Financing Auth. RB,
             Series 1989A (PRE)                               7.00    10/01/2018      2,040
    8,000   Kern High School District GO TRAN,
             Series 1999                                      4.00     7/06/2000      8,036
    4,200   Montebello GO TRAN, Series 1999 (LOC)             4.00     6/30/2000      4,212
   10,000   Northern Transmission Agency CP,
             Series 1999B (LOC)                               2.85    10/08/1999     10,000
    5,000   Orange County Fire Auth. GO TRAN,
             Series 1999                                      4.50     7/12/2000      5,039
    2,750   Oxnard School District GO TRAN,
             Series 1999                                      4.25     7/27/2000      2,765
    1,000   Placer County Office of Education TRAN,
             Series 1999                                      4.13    10/01/2000      1,005
      310   Pleasanton Unified School District GO,
             Series 1997D (INS)(1)                            5.50     8/01/2000        315
    1,300   Rocklin Unified School District TRAN,
             Series 1999                                      4.13    10/01/2000      1,306
    2,035   Roseville City School District TRAN,
             Series 1999                                      4.13    10/01/2000      2,044
    7,000   San Joaquin County Transport Auth. CP (LOC)       3.10    10/12/1999      7,000
    8,000   San Luis Coastal Unified School
             District Project Notes, Series 1999              4.25     6/30/2000      8,050
    2,500   San Luis Coastal Unified School
             District TRAN, Series 1999                       4.25     7/14/2000      2,515
   12,000   San Ramon Valley Unified School
             District TRAN, Series 1998-99                    3.05    12/16/1999     12,000
    1,000   South Orange County Public Financing
             Auth. Special Tax RB, Series 1999A (INS)(4)      4.50     8/15/2000      1,008
      600   State GO                                          4.50    10/01/1999        600
    6,495   State GO                                          9.00     6/01/2000      6,741
   10,000   State GO CP                                       2.85    10/05/1999     10,000
    4,300   State GO CP                                       3.05    10/22/1999      4,300
    5,000   Statewide Communities Development Auth.
             TRAN, Series A1 (INS)(4)                         4.00     6/30/2000      5,028
            Puerto Rico (1.3%)
    5,000   Government Development Bank CP,
             Series 1995A                                     3.45     2/08/2000      5,000
- -------------------------------------------------------------------------------------------
            Total fixed-rate instruments (cost: $107,472)                           107,472
- -------------------------------------------------------------------------------------------
            Total investments (cost: $398,606)                                     $398,606
===========================================================================================
</TABLE>



                       PORTFOLIO SUMMARY BY CONCENTRATION
                       ----------------------------------
            General Obligations                                 20.5%
            Multi-Family Housing                                13.4
            Water/Sewer Utilities - Municipal                    8.7
            Special Assessment/Tax/Fee                           8.2
            Buildings                                            7.6
            Hospitals                                            5.2
            Appropriated Debt                                    4.4
            Nursing/Continuing Care Centers                      4.1
            Finance - Municipal                                  3.2
            Manufacturing - Diversified Industries               2.8
            Electric Utilities                                   2.5
            Electric/Gas Utilities - Municipal                   2.5
            Lodging/Hotel                                        2.3
            Real Estate Tax/Free                                 2.3
            Nursing Care                                         2.0
            Education                                            1.7
            Sales Tax                                            1.7
            Banks - Major Regional                               1.3
            Other                                                4.9
                                                                ----
            Total                                               99.3%
                                                                ====










NOTES TO PORTFOLIOS OF INVESTMENTS

September 30, 1999
(Unaudited)




GENERAL NOTES
Values of securities  are  determined by procedures  and practices  discussed in
note 1 to the financial statements.

The cost of securities for federal income tax purposes is approximately the same
as that reported in the financial statements.

The percentages shown represent the percentage of the investments to net assets.


SPECIFIC NOTES
(a)  Zero-Coupon  security.  Rate  represents  the  effective  yield  at date of
purchase. For the USAA California Bond Fund these securities represented 9.5% of
the Fund's net assets.

(b)  This  security  was  purchased  within  the  terms of a  private  placement
memorandum  and is subject  to a  seven-day  demand  feature.  Under  procedures
adopted by the Board of Directors, the adviser has determined that this security
is liquid.  At September 30, 1999,  this security  represented  4.3% of the USAA
California Money Market Fund's net assets.

(c)  At  September   30,   1999,   the  cost  of   securities   purchased  on  a
delayed-delivery basis for the USAA California Bond Fund was $17.5 million.

(d)  At  September  30,  1999,   these   securities  were  segregated  to  cover
delayed-delivery purchases.



See accompanying notes to financial statements.







<TABLE>


STATEMENTS OF ASSETS AND LIABILITIES
(IN THOUSANDS)

September 30, 1999
(Unaudited)

<CAPTION>


                                                                                        USAA
                                                                        USAA         California
                                                                     California     Money Market
                                                                      Bond Fund         Fund
                                                                     ----------------------------
<S>                                                                    <C>          <C>
ASSETS
   Investments in securities, at market value
      (identified cost of $612,416 and $398,606, respectively)         $620,516     $  398,606
   Cash                                                                     266          1,358
   Receivables:
      Capital shares sold                                                    28            265
      Interest                                                            9,137          2,007
      Securities sold                                                     7,737           -
                                                                       -----------------------
         Total assets                                                   637,684        402,236
                                                                       -----------------------
LIABILITIES
   Securities purchased                                                  17,477           -
   Capital shares redeemed                                                  215            686
   USAA Investment Management Company                                       160            104
   USAA Transfer Agency Company                                              25             20
   Accounts payable and accrued expenses                                     45             70
   Dividends on capital shares                                              848             50
                                                                       -----------------------
         Total liabilities                                               18,770            930
                                                                       -----------------------
            Net assets applicable to capital shares outstanding        $618,914     $  401,306
                                                                       =======================

REPRESENTED BY:
   Paid-in capital                                                     $613,366     $  401,306
   Accumulated net realized loss on investments                          (2,552)          -
   Net unrealized appreciation of investments                             8,100           -
                                                                       -----------------------
            Net assets applicable to capital shares outstanding        $618,914     $  401,306
                                                                       =======================
   Capital shares outstanding                                            58,601        401,306
                                                                       =======================
   Authorized shares of $.01 par value                                  140,000      2,435,000
                                                                       =======================
   Net asset value, redemption price, and offering price per share     $  10.56     $     1.00
                                                                       =======================
</TABLE>


See accompanying notes to financial statements.








<TABLE>

STATEMENTS OF OPERATIONS
(IN THOUSANDS)

Six-month period ended September 30, 1999
(Unaudited)

<CAPTION>



                                                                            USAA
                                                                 USAA     California
                                                              California  Money Market
                                                               Bond Fund      Fund
                                                              ------------------------
<S>                                                            <C>             <C>
Net investment income:
   Interest income                                             $ 17,968        $ 6,661
                                                              ------------------------
   Expenses:
      Management fees                                               994            655
      Transfer agent's fees                                         139            107
      Custodian's fees                                               57             55
      Postage                                                        11             17
      Shareholder reporting fees                                      4              7
      Directors' fees                                                 2              2
      Registration fees                                               5             -
      Professional fees                                              11             12
      Other                                                           6              3
                                                              ------------------------
         Total expenses                                           1,229            858
                                                              ------------------------
            Net investment income                                16,739          5,803
                                                              ------------------------
Net realized and unrealized loss on investments:
      Net realized loss                                          (2,431)           -
      Change in net unrealized appreciation/depreciation        (39,967)           -
                                                              ------------------------
            Net realized and unrealized loss                    (42,398)           -
                                                              ------------------------
Increase (decrease) in net assets resulting from operations    $(25,659)       $ 5,803
                                                              ========================
</TABLE>



See accompanying notes to financial statements.








<TABLE>

STATEMENTS OF CHANGES IN NET ASSETS
(IN THOUSANDS)

Six-month period ended September 30, 1999, and year ended March 31, 1999
(Unaudited)

<CAPTION>


                                                     USAA                    USAA
                                                  California              California
                                                   Bond Fund           Money Market Fund
                                              -------------------------------------------
                                               9/30/99   3/31/99       9/30/99   3/31/99
                                              -------------------------------------------
<S>                                           <C>       <C>           <C>       <C>
From operations:
   Net investment income                      $ 16,739  $ 30,424      $  5,803   $ 11,846
   Net realized gain (loss) on investments      (2,431)      119           -          -
   Change in net unrealized appreciation/
      depreciation of investments              (39,967)    5,588           -          -
                                              -------------------------------------------
      Increase (decrease) in net assets
         resulting from operations             (25,659)   36,131         5,803     11,846
                                              -------------------------------------------
Distributions to shareholders from:
   Net investment income                       (16,739)  (30,424)       (5,803)   (11,846)
                                              -------------------------------------------
From capital share transactions:
   Proceeds from shares sold                    55,838   152,433       183,324    482,344
   Dividend reinvestments                       11,599    21,003         5,460     11,109
   Cost of shares redeemed                     (47,778)  (71,237)     (226,686)  (485,999)
                                              -------------------------------------------
      Increase (decrease) in net assets
         from capital share transactions        19,659   102,199       (37,902)     7,454
                                              -------------------------------------------
Net increase (decrease) in net assets          (22,739)  107,906       (37,902)     7,454
Net assets:
   Beginning of period                         641,653   533,747       439,208    431,754
                                              -------------------------------------------
   End of period                              $618,914  $641,653      $401,306   $439,208
                                              ===========================================
Change in shares outstanding:
   Shares sold                                   5,076    13,515       183,324    482,344
   Shares issued for dividends reinvested        1,068     1,859         5,460     11,109
   Shares redeemed                              (4,370)   (6,329)     (226,686)  (485,999)
                                              -------------------------------------------
      Increase (decrease)
          in shares outstanding                  1,774     9,045       (37,902)     7,454
                                              ===========================================
</TABLE>



See accompanying notes to financial statements.










NOTES TO FINANCIAL STATEMENTS

September 30, 1999
(Unaudited)



(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
USAA Tax Exempt  Fund,  Inc.  (the  Company),  registered  under the  Investment
Company  Act  of  1940,  as  amended,  is  a  diversified,  open-end  management
investment  company  incorporated  under the laws of Maryland  consisting of ten
separate  funds.  The information  presented in this semiannual  report pertains
only to the USAA California Bond Fund and USAA California Money Market Fund (the
Funds). The Funds have a common objective of providing California investors with
a high  level of  current  interest  income  that is  exempt  from  federal  and
California  state  income  taxes.  The USAA  California  Money Market Fund has a
further objective of preserving capital and maintaining liquidity.

A. Security  valuation - Investments in the USAA California Bond Fund are valued
each business day by a pricing  service (the Service)  approved by the Company's
Board of  Directors.  The  Service  uses the mean  between  quoted bid and asked
prices  or the last  sale  price  to price  securities  when,  in the  Service's
judgement,  these prices are readily  available  and are  representative  of the
securities'  market  values.  For many  securities,  such prices are not readily
available.  The Service generally prices these securities based on methods which
include  consideration of yields or prices of municipal securities of comparable
quality,  coupon,  maturity,  and type, indications as to values from dealers in
securities,  and general market  conditions.  Securities which are not valued by
the Service,  and all other assets, are valued in good faith at fair value using
methods determined by the Manager under the general  supervision of the Board of
Directors. Securities purchased with maturities of 60 days or less and, pursuant
to Rule  2a-7  under  the  Investment  Company  Act of  1940,  as  amended,  all
securities  in the USAA  California  Money Market Fund,  are stated at amortized
cost which approximates market value.

B.  Federal taxes - Each Fund's policy is to comply with the requirements of the
Internal  Revenue Code  applicable  to  regulated  investment  companies  and to
distribute  substantially all of its income to its shareholders.  Therefore,  no
federal income or excise tax provision is required.

C.  Investments in securities - Security  transactions  are accounted for on the
date the securities are purchased or sold (trade date).  Gain or loss from sales
of investment  securities  is computed on the  identified  cost basis.  Interest
income is recorded  daily on the accrual  basis.  Premiums  and  original  issue
discounts  are  amortized  over the life of the  respective  securities.  Market
discounts are not amortized.  Any ordinary income related to market discounts is
recognized  upon  disposition of the  securities.  The Funds  concentrate  their
investments in California  municipal  securities and therefore may be exposed to
more credit risk than portfolios with a broader geographical diversification.

D.  Use of  estimates - The  preparation  of  financial statements in conformity
with  generally accepted  accounting  principles  requires  management  to  make
estimates  and  assumptions   that  may  affect  the  reported  amounts  in  the
financial statements.

(2) LINES OF CREDIT
The Funds participate with other USAA funds in three joint short-term  revolving
loan  agreements  totaling  $850  million,  two with  USAA  Capital  Corporation
(CAPCO),  an affiliate of the Manager ($250  million  committed and $500 million
uncommitted), and one with Bank of America ($100 million committed). The purpose
of the  agreements  is to meet  temporary  or  emergency  cash needs,  including
redemption  requests that might  otherwise  require the untimely  disposition of
securities.  Subject to availability under both agreements with CAPCO, each Fund
may  borrow  from  CAPCO an  amount  up to 5% of its  total  assets  at  CAPCO's
borrowing rate with no markup.  Subject to availability under its agreement with
Bank of America, each Fund may borrow from Bank of America, at Bank of America's
borrowing  rate  plus a markup,  an  amount  which,  when  added to  outstanding
borrowings under the CAPCO agreements,  does not exceed 15% of its total assets.
The Funds had no borrowings under any of these  agreements  during the six-month
period ended September 30, 1999.

(3) DISTRIBUTIONS
Net  investment  income  is  accrued  daily  as  dividends  and  distributed  to
shareholders monthly. Distributions of realized gains from security transactions
not  offset by  capital  losses  are made in the  succeeding  fiscal  year or as
otherwise required to avoid the payment of federal taxes. At September 30, 1999,
the USAA California Bond Fund had capital loss carryovers for federal income tax
purposes  of  approximately  $2.6  million  which,  if not offset by  subsequent
capital gains,  will expire in 2003. It is unlikely that the Company's  Board of
Directors will authorize a distribution  of capital gains realized in the future
until the capital loss carryovers have been utilized or expire.

(4) INVESTMENT TRANSACTIONS
Costs of purchases and proceeds  from  sales/maturities  of  securities  for the
six-month period ended September 30, 1999, were as follows:

                               USAA California     USAA California
                                  Bond Fund       Money Market Fund
                                   ($000)               ($000)
                               ------------------------------------
Purchases                         $166,643             $597,046
Sales/maturities                  $146,027             $595,308


For the  USAA  California  Bond  Fund,  costs of  purchases  and  proceeds  from
sales/maturities excludes short-term securities.

Gross  unrealized  appreciation and depreciation of investments at September 30,
1999, was as follows:

                               Appreciation      Depreciation         Net
                                  ($000)            ($000)          ($000)
                               -------------------------------------------
USAA California Bond Fund        $24,174           ($16,074)        $8,100


(5) TRANSACTIONS WITH MANAGER
A.  Management fees - USAA Investment  Management  Company (the Manager) carries
out  each  Fund's  investment   policies  and  manages  each  Fund's  portfolio.
Management  fees are  computed as a percentage  of aggregate  average net assets
(ANA) of both Funds  combined,  which on an annual basis is equal to .50% of the
first $50  million,  .40% of that  portion  over $50  million  but not over $100
million, and .30% of that portion over $100 million. These fees are allocated on
a proportional basis to each Fund monthly based upon ANA.

B.  Transfer agent's fees - USAA Transfer Agency Company, d/b/a USAA Shareholder
Account Services, an affiliate of the Manager,  provides transfer agent services
to the Funds based on an annual  charge of $28.50 per  shareholder  account plus
out-of-pocket expenses.

C.  Underwriting  services - The Manager  provides  exclusive  underwriting  and
distribution  of the  Funds'  shares on a  continuing  best-efforts  basis.  The
Manager receives no commissions or fees for this service.

(6) TRANSACTIONS WITH AFFILIATES
Certain directors and officers of the Funds are also directors, officers, and/or
employees  of the Manager.  None of the  affiliated  directors or Fund  officers
received any compensation from the Funds.

(7) YEAR 2000
Like other mutual funds,  the Funds could be adversely  affected if the computer
systems used by the Manager and the Funds' other service  providers are not able
to perform  their  intended  functions  effectively  after  1999  because of the
inability of computer  software to distinguish the year 2000 from the year 1900.
The Manager has taken steps to address  this  potential  year 2000  problem with
respect  to the  computer  systems  that  it  uses  and to  obtain  satisfactory
assurances  that  comparable  steps are being  taken by the Funds'  other  major
service providers.  At this time, however,  there can be no assurance that these
steps  will be  sufficient  to avoid any  adverse  impact on the Funds from this
problem.

<TABLE>

(8) FINANCIAL HIGHLIGHTS
Per share operating  performance for a share outstanding  throughout each period
is as follows:

<CAPTION>

                               Six-Month
                             Period Ended
                             September 30,                  Year Ended March 31,
                                           ---------------------------------------------------
                                 1999       1999       1998       1997       1996       1995
                             -----------------------------------------------------------------
<S>                          <C>          <C>        <C>        <C>        <C>        <C>
Net asset value at
   beginning of period       $  11.29     $  11.17   $  10.50   $  10.43   $  10.10   $  10.03
Net investment income             .29          .59        .60        .61        .60        .59
Net realized and
   unrealized gain (loss)        (.73)         .12        .67        .07        .33        .07
Distributions from net
   investment income             (.29)        (.59)      (.60)      (.61)      (.60)      (.59)
                             -----------------------------------------------------------------
Net asset value at
   end of period             $  10.56     $  11.29   $  11.17   $  10.50   $  10.43   $  10.10
                             =================================================================
Total return (%)*               (3.95)        6.46      12.33       6.60       9.35       6.89
Net assets at end
   of period (000)           $618,914     $641,653   $533,747   $440,231   $409,180   $372,877
Ratio of expenses to
   average net assets (%)         .39(a)       .39        .40        .41        .42        .44
Ratio of net investment
   income to average
   net assets (%)                5.29(a)      5.21       5.47       5.74       5.74       5.98
Portfolio turnover (%)          23.78         7.20      20.16      23.72      23.09      28.86


(a) Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
    operations.
  * Assumes reinvestment of all dividend income distributions during the period.
</TABLE>


<TABLE>

NOTES TO FINANCIAL STATEMENTS (Continued)
USAA CALIFORNIA MONEY MARKET FUND

September 30, 1999
(Unaudited)

(8) FINANCIAL HIGHLIGHTS (Continued)
Per share operating  performance for a share outstanding  throughout each period
is as follows:
<CAPTION>

                              Six-Month
                             Period Ended
                             September 30,                  Year Ended March 31,
                                          -------------------------------------------------------
                                1999         1999        1998       1997       1996       1995
                             --------------------------------------------------------------------
<S>                          <C>           <C>         <C>        <C>        <C>         <C>
Net asset value at
   beginning of period       $   1.00      $   1.00    $   1.00   $   1.00   $   1.00    $   1.00
Net investment income             .01           .03         .03        .03        .04         .03
Distributions from net
   investment income             (.01)         (.03)       (.03)      (.03)      (.04)       (.03)
                             --------------------------------------------------------------------
Net asset value at
   end of period             $   1.00      $   1.00    $   1.00   $   1.00   $   1.00    $   1.00
                             ====================================================================
Total return (%)*                1.40          3.03        3.35       3.23       3.58        2.94
Net assets at end
   of period (000)           $401,306      $439,208    $431,754   $341,128   $296,349    $266,764
Ratio of expenses to
   average net assets (%)         .41(a)        .42         .41        .45        .47         .47
Ratio of net investment
   income to average
   net assets (%)                2.78(a)       2.99        3.30       3.19       3.52        2.91

(a) Annualized.  The  ratio  is not  necessarily  indicative  of 12  months  of
    operations.
  * Assumes reinvestment of all dividend income distributions during the period.
</TABLE>










DIRECTORS
Robert G. Davis, Chairman of the Board
Michael J.C. Roth, President and Vice Chairman of the Board
John W. Saunders, Jr., Vice President
Barbara B. Dreeben
Howard L. Freeman, Jr.
Robert L. Mason
Richard A. Zucker

INVESTMENT ADVISER, UNDERWRITER AND DISTRIBUTOR
USAA Investment Management Company
9800 Fredericksburg Road
San Antonio, Texas 78288

TRANSFER AGENT
USAA Shareholder Account Services
9800 Fredericksburg Road
San Antonio, Texas 78288

CUSTODIAN
State Street Bank and Trust Company
P.O. Box 1713
Boston, Massachusetts 02105

LEGAL COUNSEL
Goodwin, Procter & Hoar LLP
Exchange Place
Boston, Massachusetts 02109

INDEPENDENT AUDITORS
KPMG LLP
112 East Pecan, Suite 2400
San Antonio, Texas 78205

Telephone Assistance Hours
Call toll free - Central Time
Monday - Friday 7:00 a.m. to 9:00 p.m.
Saturdays 8:30 a.m. to 5:00 p.m.
Sundays 11:30 a.m. to 8:00 p.m.

Internet Access
www.usaa.com

For Additional Information on Mutual Funds
1-800-531-8181, (in San Antonio) 456-7211
For account servicing, exchanges, or redemptions
1-800-531-8448, (in San Antonio) 456-7202

Recorded Mutual Fund Price Quotes
24-Hour Service (from any phone)
1-800-531-8066, (in San Antonio) 498-8066

Mutual Fund USAA TouchLine(Registered Trademark)
(from Touchtone phones only)
For account balance, last transaction or fund prices
1-800-531-8777, (in San Antonio) 498-8777







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